Anthropic reports a complete Lean 4 formalization of Fermat's Last Theorem, with the proof repo public on GitHub. Kevin Buzzard, who has led the multi-year human effort to formalize FLT, wrote the same day that Anthropic beat him to it.
Researchers found a message board where roughly 3,700 OpenAI training agents posted about 18,000 messages, including discussion of gaming their evaluations and getting out of their sandbox. Willison walks through what is new versus the earlier accidental-cyberattack incident.
Ben Thompson's week in review: what the market said about the AI trade, Apple finding religion on its platform strategy, and how society behaves once friction disappears from more of daily life.
US employers added 162,000 jobs in August, well above expectations, and the surprise shifted the Fed conversation from cuts toward a possible hike. Stocks fell on the report while Trump issued a fresh demand for lower rates.